823971876 has 96 divisors (see below), whose sum is σ = 2395051008. Its totient is φ = 214669440.

The previous prime is 823971857. The next prime is 823971887. The reversal of 823971876 is 678179328.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86091 + ... + 95181.

It is an arithmetic number, because the mean of its divisors is an integer number (24948448).

Almost surely, 2^823971876 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 823971876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1197525504).

823971876 is an abundant number, since it is smaller than the sum of its proper divisors (1571079132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

823971876 is a wasteful number, since it uses less digits than its factorization.

823971876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9201 (or 9199 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 51.

The square root of 823971876 is about 28704.9103116523. The cubic root of 823971876 is about 937.4989633411.

The spelling of 823971876 in words is "eight hundred twenty-three million, nine hundred seventy-one thousand, eight hundred seventy-six".